Scattering by cyclic polymers and copolymers at large scattering vectors |
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| Authors: | M. Kosmas H. Benoît G. Hadziioannou |
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| Affiliation: | (1) Department of Chemistry, University of Ioannina, Ioannina, Greece;(2) Present address: Institut Charles Sadron, 6 rue Boussingault, 67083 Strasbourg, France;(3) Department of Chemistry, University of Groningen, Groningen, The Netherlands |
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| Abstract: | General formulae allowing the evaluation of the form factors of cyclic block copolymers are established and graphs for cyclic copolymers of the form (A-B)N are shown. WhenN is large, the linear and the cyclic copolymer have the same behaviour. It is possible to extend at large angle an analytical expression given for linear polymers. This allows to show that, in the study of transesterification by small-angle neutron scattering, one can neglect the effect of cycles.Dedicated to Prof. Fischer on the occasion of his 65th birthday |
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| Keywords: | Neutron scattering cyclic polymer ring copolymers transesterification |
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